There's an odd mental quirk that I noticed in myself some years ago and that I suspect some others also have. I was alternately riding a bicycle and driving a car, and I noticed that when I was on a bicycle, I felt an attitude of "Of course they can see me," and when I was driving I was cussing out the bicyclists because "I can't see you if you're wearing dark clothes and have no reflectors, let alone lights." When I realized that I had both attitudes, I began to be much more cautious both as a driver and as a rider.

Bouncy's post makes me feel very relieved that we didn't have any transport problems at all during our week in London. This trip would have been even more terrible with 16 tired and hungry teenagers in tow!